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10 votes

What is the "correct" generalization of operator norms for nonlinear operators?

Probably the answer depends on the context, where you need the generalized concept. Unfortunately, usually the linearized operator is not bounded anymore, because it contains differential operators. …
András Bátkai's user avatar
2 votes

Characterizing when matrices are 'dissipative'

The problem has been addressed in the infinite dimensional setting in the following paper: Máté Matolcsi, On the relation of closed forms and Trotter’s product formula, J. Funct. Anal. 205 (2003), n …
András Bátkai's user avatar